Write equations to represent the following observations. (a) A mixture of Mg(OH) 2 (s) and Zn(OH) 2

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Write equations to represent the following observations.

(a) A mixture of Mg(OH)2(s) and Zn(OH)2(s) is treated with NH3(aq). The Zn(OH)2 dissolves, but the Mg(OH)2(s) is left behind.

(b) When NaOH(aq) is added to CuSO4(aq), a pale blue precipitate forms. If NH3(aq) is added, the precipitate redissolves, producing a solution with an intense deep blue color. If this deep blue solution is made acidic with HNO3(aq), the color is converted back to pale blue.

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General Chemistry Principles And Modern Applications

ISBN: 9780132931281

11th Edition

Authors: Ralph Petrucci, Jeffry Madura, F. Herring, Carey Bissonnette

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